Class Gray in namespace setasign\SetaPDF2\Core\DataStructure\Color in SetaPDF v2 API Reference

Index

\setasign\SetaPDF2
1. Core
  1. DataStructure
    1. Color
      1. AbstractColor
      2. Cmyk
      3. Gray
      4. Rgb
      5. Special

setasign\SetaPDF2\Core\DataStructure\Color

Gray Gray Color

File: /SetaPDF v2/Core/DataStructure/Color/Gray.php
Old class name (alias): \SetaPDF_Core_DataStructure_Color_Gray

Class hierarchy

AbstractColor
- Gray

Implements

\setasign\SetaPDF2\Core\DataStructure\DataStructureInterface

Summary

Properties

$_components

protected \setasign\SetaPDF2\Core\Type\PdfArray AbstractColor::$_components

The array of color components

Static Methods

createByComponents()

public static AbstractColor::createByComponents (

int|float|string|array|\setasign\SetaPDF2\Core\Type\PdfArray $components

): AbstractColor

Create an instance by a PDF array object, PHP array or a hexadecimal string of an RGB value.

Parameters

$components : int|float|string|array|\setasign\SetaPDF2\Core\Type\PdfArray

Exceptions

Throws \InvalidArgumentException

hexToRgb()

WARNING: This method is marked as deprecated!

Use Rgb ::hexToRgb() instead.

public static AbstractColor::hexToRgb (

string $hex

): array

Converts a hex encoded string (3 or 6 characters) into a component array of red, green and blue values.

Parameters

$hex : string

writePdfString()

public static Gray::writePdfString (

\setasign\SetaPDF2\Core\Writer\WriteInterface $writer,
array|float $components,
bool $stroking = true

): void

Writes a color definition directly to a writer.

Parameters

$writer : \setasign\SetaPDF2\Core\Writer\WriteInterface
$components : array|float: An array of 1 component or the value for the gray color
$stroking : bool: Stroking flag

Exceptions

Throws \InvalidArgumentException

writePdfStringByComponents()

public static AbstractColor::writePdfStringByComponents (

\setasign\SetaPDF2\Core\Writer\WriteInterface $writer,
array|int|float|string $components,
bool $stroking = true

): void

Writes a color definition directly to a writer.

Parameters

$writer : \setasign\SetaPDF2\Core\Writer\WriteInterface
$components : array|int|float|string
$stroking : bool

Exceptions

Throws \InvalidArgumentException

Methods

__construct()

public Gray::__construct (

float|\setasign\SetaPDF2\Core\Type\PdfArray $components

)

The constructor.

Parameters

$components : float|\setasign\SetaPDF2\Core\Type\PdfArray

Exceptions

Throws \InvalidArgumentException

__clone()

public AbstractColor::__clone (

void

): void

Implementation of __clone().

adjustAllComponents()

public AbstractColor::adjustAllComponents (

int|float $by

): void

Adjust all color components by a specific value.

Parameters

$by : int|float

draw()

public Gray::draw (

\setasign\SetaPDF2\Core\Writer\WriteInterface $writer,
bool $stroking = true

): void

Draw the color on a writer.

Parameters

$writer : \setasign\SetaPDF2\Core\Writer\WriteInterface
$stroking : bool

See

Gray::writePdfString()

getValue()

public AbstractColor::getValue (

void

): \setasign\SetaPDF2\Core\Type\PdfArray

Get the components of the color.

toPhp()

public AbstractColor::toPhp (

void

): array

Get the data as a PHP value.